Alert archive / Oklahoma / Mesoscale Discussions in 2003

Mesoscale Discussion 980

May 14, 2003Barber County, Comanche County, Harper County, Kansas; 7 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at May 14, 2003, 4:52 PM CDT for Barber County, Comanche County, Harper County, Kansas; 7 counties in Oklahoma. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued: May 14, 2003, 4:52 PM CDT (21:52 UTC)
Expired: May 14, 2003, 6:45 PM CDT
In force: 113 min
Issued by: the Storm Prediction Center

Counties Barber County, KS, Comanche County, KS, Harper County, KS, Alfalfa County, OK, Garfield County, OK, Grant County, OK, Kay County, OK, Noble County, OK, Payne County, OK, Woods County, OK

The radar

The Vance AFB radar (KVNX), 17 km from the middle of the area, began a volume at 21:51 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 9.9 hours before the alert went out and 185 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 104 J/kg
Mixed-layer CIN: -358 J/kg
Mixed-layer LCL: 1435 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: -139 m²/s²
0-3 km storm-relative helicity: -223 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 13, 8:38 PM CDT	Mesoscale Discussion	SPC	Brown, Clay, Cloud, Marshall, Nemaha, Ottawa and 3 more	2 hr
May 13, 9:58 PM CDT	Mesoscale Discussion	SPC	Barber, Comanche, Cowley, Harper, Sumner	3 hr
May 13, 10:20 PM CDT	Severe Thunderstorm Watch	SPC	Clark	7 hr
May 14, 1:34 AM CDT	Mesoscale Discussion	SPC	Atoka, Blaine, Caddo, Canadian, Cleveland, Coal and 32 more	116 min
May 14, 3:49 AM CDT	Mesoscale Discussion	SPC	Atoka, Blaine, Bryan, Caddo, Canadian, Carter and 38 more	116 min
May 14, 4:05 AM CDT	Severe Thunderstorm Watch	SPC	Alfalfa, Blaine, Bryan, Caddo, Canadian, Carter and 23 more	5 hr
May 14, 5:50 AM CDT	Mesoscale Discussion	SPC	Atoka, Blaine, Bryan, Caddo, Canadian, Carter and 23 more	115 min
May 14, 7:40 AM CDT	Mesoscale Discussion	SPC	Beckham, Bryan, Carter, Comanche, Cotton, Custer and 11 more	95 min
May 14, 10:55 AM CDT	Mesoscale Discussion	SPC	Bryan, Choctaw, Johnston, McCurtain, Marshall	2 hr
May 14, 2:30 PM CDT	Tornado Watch	SPC	Choctaw, McCurtain, Pushmataha	6 hr
May 14, 3:23 PM CDT	Mesoscale Discussion	SPC	Cotton, Jefferson, Love, Tillman	2 hr
May 14, 6:28 PM CDT	Mesoscale Discussion	SPC	Greer, Harmon, Jackson	2 hr

Nearby

Mesoscale Discussions in Oklahoma, 2003 Mesoscale Discussions in Kansas, 2003 Every mesoscale discussion in 2003

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.